1 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 define i1 @test1(double %X, double %Y) {
5 %tmp9 = fcmp ord double %X, 0.000000e+00
6 %tmp13 = fcmp ord double %Y, 0.000000e+00
7 %bothcond = and i1 %tmp13, %tmp9
9 ; CHECK: fcmp ord double %Y, %X
12 define i1 @test2(i1 %X, i1 %Y) {
16 ; CHECK-LABEL: @test2(
17 ; CHECK-NEXT: and i1 %X, %Y
21 define i32 @test3(i32 %X, i32 %Y) {
25 ; CHECK-LABEL: @test3(
26 ; CHECK-NEXT: and i32 %X, %Y
30 define i1 @test4(i32 %X) {
31 %a = icmp ult i32 %X, 31
32 %b = icmp slt i32 %X, 0
35 ; CHECK-LABEL: @test4(
36 ; CHECK-NEXT: ret i1 false
39 ; Make sure we don't go into an infinite loop with this test
40 define <4 x i32> @test5(<4 x i32> %A) {
41 %1 = xor <4 x i32> %A, <i32 1, i32 2, i32 3, i32 4>
42 %2 = and <4 x i32> <i32 1, i32 2, i32 3, i32 4>, %1
46 ; Check that we combine "if x!=0 && x!=-1" into "if x+1u>1"
47 define i32 @test6(i64 %x) nounwind {
48 ; CHECK-LABEL: @test6(
49 ; CHECK-NEXT: add i64 %x, 1
50 ; CHECK-NEXT: icmp ugt i64 %x.off, 1
51 %cmp1 = icmp ne i64 %x, -1
52 %not.cmp = icmp ne i64 %x, 0
53 %.cmp1 = and i1 %cmp1, %not.cmp
54 %land.ext = zext i1 %.cmp1 to i32
58 define i1 @test7(i32 %i, i1 %b) {
59 ; CHECK-LABEL: @test7(
60 ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %i, 0
61 ; CHECK-NEXT: [[AND:%.*]] = and i1 [[CMP]], %b
62 ; CHECK-NEXT: ret i1 [[AND]]
63 %cmp1 = icmp slt i32 %i, 1
64 %cmp2 = icmp sgt i32 %i, -1
65 %and1 = and i1 %cmp1, %b
66 %and2 = and i1 %and1, %cmp2
70 define i1 @test8(i32 %i) {
71 ; CHECK-LABEL: @test8(
72 ; CHECK-NEXT: [[DEC:%.*]] = add i32 %i, -1
73 ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[DEC]], 13
74 ; CHECK-NEXT: ret i1 [[CMP]]
75 %cmp1 = icmp ne i32 %i, 0
76 %cmp2 = icmp ult i32 %i, 14
77 %cond = and i1 %cmp1, %cmp2